No, I think the story is a coming out story, and the author has confusingly chosen to make the "coming out" part of it implicit instead of explicit. I'm concerned this is because of norms among yuri readers that they prefer these things to be unspoken, even in a situation where it really grinds against the entire concept of the story.
Coming out IS THE WAY Hinako overcomes her issues with being normal and repressing herself. If she ends the story like, "Oh well, I like this one woman but I will absolutely not think about myself more generally than that," then that does not seem as if she's done a very good job overcoming her repression, which was, like, the whole arc of the story.
Hmm, I see two things here: this might be a coming out story and an adult coming-of-age one.
As far as the recent chapters are concerned, and with the way Hinako deems her mother (actually sees her mother) to be the "typical parent" (wanting happiness for their children without considering their kids' input), this might well be a "coming out" story. I can only deduce this much from panels where Hinako seems to be a bit terrified of the prospect of failing her mother by straying from the norm. Her friends are beginning to see the subtle changes and it began when Hinako bailed from an after-dinner invite just so she could run to Asahi with doughnuts and say something about the moon. She's beginning to acknowledge her feelings and her friends are slowly seeing it. I won't be surprised if in the next chapters her friends will figure out Hinako's pretty gay, maybe one of the girlfriends will find it icky or the recent cute guy will be the one defending her (i dunno, it'd be utterly awesome if there are straight male allies in the story like in Sasameki Koto)...
For Asahi, being the breadwinner (and also gay) is something I can relate to. Working my ass off to keep my family financially secure and my siblings happy made me put them first before myself. Minus the tragic part (my parents are still alive), I understand Asahi's insistence in saying Subaru is everything to her. I feel the same way for my siblings. I can imagine Asahi going home bone-tired from work, being greeted by her younger sister in good health and just basically a happy kid. I understand the feeling of nothing else matters besides that fact.
So, Asahi probably thinks she can go to work tomorrow rinse and repeat. She decides that's the point of HER LIFE.
Yet, Subaru has another outlook. She's too perceptive and smart for a teenager. But it takes the presence of Hinako to set things into motion (Subaru sees this as the chance to free Asahi from too much dwelling on obligation).
It's the same wound (loneliness) Hinako has but it comes from a different place. They are two lonely individuals who, if they give themselves a shot, the world will be less lonely. Hinako will be brave, unafraid of what the world thinks about her and Asahi will get out of her shell, realizing she doesn't need to shoulder everything.
So far, this is how I see the narrative.
